Closure sealing apparatus



Oct. 1 1933- D. STERN CLOSURE SEALING APPARATUS Filed Sept. 10, 1931 m J Origm 1 y 1? fiwenfor .llavzd 5hr Patented Oct. 10, 1933 v UNITED STATES PATIENT OFFICE j 1,930,325 I CLOSURE SEALING APPARATUS David Stern, Newton, Mass.

9 Claims.

This invention relates to an apparatus for locking set-in covers in deformable containers in such manner that the same can not be removed without leaving evidence of tampering. This result is secured in the present case by a single movement of the crimping members which produces in the contacting cover flange and container wall interlocked horizontal lugs which extend from the material thereof either inwardly or outwardly of the container wall, as appears in applicants copending application, Serial No. 562,065, filed Sept. 10, 1931, of which the present is a divisional application.

In the accompanying specification, I have described, and in the drawing illustrated, an apparatus which has proven practical in use and produces a satisfactory seal of the cover in the container.

Fig. 1 is an elevation of my cover sealing apparatus in inoperative position.

Fig. 2 is a similar view showing the parts in operating position.

Fig. 3 is a view of the female die removed.

Fig. 4 is a bottom end view looking up at the same.

Fig. 5 is a fragmentary view of removed, and

Fig. 6 is a bottom end view looking up at. the same.

li'fy machine for crimping the cover to the con tainer wall, illustrated in the drawing, comprises a bottom frame member 10 which is connected to an upper frame member 11 by the rod 12 on which the member 11" is rigidly mounted and the male die which itself is slidable in the member 10. On the upper end of the rod 12, is a handle 13 by means of which the member 11 is raised and lowered to operate the crimping dies and 16. The rod 12 has an enlarged portion 12 at its lower end which bears against the shoulders 10 on the member 10 to prevent disengagement of the handle 13, member 11, and rod 12 from the member 10.

On each extreme end of the lower face of the member 11 is mounted a wedge 14 having a vertical face 14 and a beveled face 14 one end of the base 1& of which Wedge extends slightly beyond the extreme ends of the member 11. The point of the wedge 14 is cut off inwardly as at 14 to produce a beveled operating end 14 adapted to enter between the upper end of a female die '15 and anti-friction roller 17 rotatably mounted in the upper end of the male die 16. The roller 17 materially decreases friction and permits a ready entry of the wedge between the dies. The dies 15 and 16 adjacent but slightly above their operating faces are pivotally mounted in the same plane in the member 10 which is slotted adjacent each end to receive the same and which serves as a fulcrum 18 on which the dies pivot as the operating portions thereof contact and deform the container wall and cover to produce the lugs 6. The male die 16 is mounted so that its lugs 16 is aligned with the recess 15 of the female die 15..

The dies 15 and 16 when the wedge 14 is in raised or inoperative position are held in spaced parallel position under the influence of the spring 19.

The female die, near its lower end, is cut away as shown at 15 ofFiguresB and 4 and the male die is provided at its lowermost end with a deforming lug member 16 The female die near its upper end. has a shoulder 15 on the operating side of the die.

In inoperative position, the vertical side 14 of the wedge and the female die 15 below the shoulder 15 are in substantial alignment, the short bevel 14 bearing on the shoulder 15 (Fig. 1). As the beveled wedge faces 14 and 14 enter between the dies, the shoulder 15 passes from the bevel 14 and engages the vertical thereby moving the die 15 on its pivot and holding it slightly inwardly inclined .so that its recess 15 is in position to receive the lug 16 of the male die. The long bevel 14 as it penetrates progressively forces the upper end of the male die 16 outwardly and thereby forces the lower end with the lug 16 inwardly and upwardly toward the recess 15 and clinches the material of the interposed wall and cover flange to produce the lugs 6 therein. (See Fig. 2.) In operation, my device is positioned over the container, as shown in Fig. 1. The handle 18 is lowered causing the dies to assume the position of Fig. 2, thus locking the cover of thecan.

The. crimping device may readily be removed from the container simply by raising the handle 13 which carries with it the member 11, with the attached wedges 14, thus withdrawing the same frombetween the dies 15 and 16. Thus released the dies return to normal inoperative position under the influence of. the spring 19.

If additional lugs are desired, the crimping device may readily be re-positioned on the container and the above operation repeated. It will be apparent that the only steps'to be taken by the operator are the positioning of the device and the lowering and raising of the handle 13.

Various modifications inthe construction and operation of. my device may obviously be resorted to without departing from the spirit of my invenface 14 of the wedge 80,

1. Mechanism for attaching a flanged cover to a wall container comprising a frame having a pair of spaced horizontal members, a pair of dies pivotally mounted on said lower member with their operating ends projecting therebeneath and adapted to be disposed one on each side of said cover flange and container wall, and their upper ends extending above said lower member, die operating means carried by said upper member and disposed so as to penetrate between the upper ends of said dies whereby said dies are rocked on their pivots and their operating faces forced inwardly to engage the container wall and cover flange to deform the material thereof so as to interlock the same. V

2. Mechanism for attaching a flanged cover to a walled container comprising a frame having a pair of spaced horizontalmembers and a rod connecting the same, the upper member being fixed on saidrod and said rod being slidable in said lower member, a pair of dies pivotally mounted on said lower member with their operating ends projecting therebeneath and adapted to be disposed one on each side of. said cover and container wall, the upper ends of 'said dies extending above said lower member, die operating means carried bysaid upper member and disposed so as to penetrate between the upper ends ofsaid dies whereby said dies are rocked on their pivots to force their operating faces inwardly to engage the container wall and cover flange to deform the material thereof so as to interlock the same. t

3. Mechanism for attaching a flanged cover to a walled container comprising a frame-having a pair of spacedhorizontal members and a rod connecting the same, the upper member being fixed on'said rod and said rod being slidable in said lower member, a pair of dies pivotally mountedon said lower member in spaced .relation to each other with their operating ends projecting therebeneath and adapted to be disposed one on each side of said cover flange and container wall, the upper ends of said dies extending above said lower member, a spring connecting said dies andnormally maintaining the same in parallel relation one to the other, die operating means carried by said upper member and disposed so as to penetrate between the upper ends of said dies where.- by said dies are rocked on their pivots to force their operating faces inwardly to engage the container wall and cover flange to deform the ma"- terial thereof so as to interlock the same.

4. Mechanism for attaching a flanged cover to a walled container comprising a frame having a pair of spaced horizontal members and a rod connecting the same, the upper member being fixed on said rod and said rod being slidable in said lower member, a pair of dies pivotally mounted on said lower member in spaced relation to each other with their operating ends projecting therebeneath and'adapted to'be disposed one on each side of said cover flange and container wall, the upper ends of said dies extending above said lower member, die operating means carried by said up per member and disposed so as to'penetrate between the upper ends of saiddies whereby said dies' are rocked on their pivots to force their operating faces inwardlyto engage the container wall and cover flangev to deform the material thereof so as to interlock the same, and antifriction means between said dies and 'said .die operating means. v

Mechanism for attaching a flanged cover to a walled container comprising a frame, a male die having a projecting lug and a female die recessed to receive said lug, said dies being pivotaliy mounted on said frame in spaced relation to each other and being adapted to be disposed one on each side of said cover flange and wall, a wedge operatively carried by said frame and adapted to enter between the upper ends of said dies, the inclined face of said wedge being adapted as it enters between said dies progressively to rock said male die on its pivot so as to drive the. operating face thereof inwardly towards said female die so as to engage the container wall and cover flange therewith to deform. the material thereof so as to interlock the same.

6. Mechanism for attaching a flanged cover to a walled container comprising a frame, a male die and a female die pivotally mounted therein and adapted to be disposed one on each side of said -flange and wall, said male die havin; a projecting lug and said female die being recessed to receive said lug, ananti-friction roller at the upper end of said male die, a die operating member operatively carried by said frame and adapted to enter between the upper ends of said dies, and having an inclined face adapted to engage said anti-friction roller progressively to rock said male die on its pivot, so as to drive-its operating face inwardly towards said female die and thereby to engage the container wall and cover flange therewith to deform the material thereof so as to interlock the same.

7. Mechanism for attaching a flanged cover to a walled container comprising a frame, a pair of dies pivotally mounted on said frame in spaced. relation to each other and adapted to be disposed one on each side of said wall and cover flange, a die operating member carried by said frame, said member having a long bevel on one face and a shorter bevel on the opposite face, said operating member being adapted to enter between said dies above their pivoted points with its long bevel contacting one of said dies and its short bevel engaging the other die whereby both dies are rocked on their pivots, said die contacted by said long bevel being progressively rocked to an extent sufficient to drive said die inwardly towards said other die and thereby engage the material of said flange and wall disposed between said dies to deform said material so as to interlock the flange and wall.

8. Mechanism forv attaching a flanged cover to a walled container comprising a frame, a male die and a female die pivotally mounted on said frame in spaced relation to each other and adapted to be disposed one on each side of said wall and cover flange, said male die having a projecting lug on its inner face and said female die being recessed to receive said lug, said male die being horizontally mounted on said frame so that said lug is aligned with said recess, means for: operating said dies comprising a member mounted on saidframe and adapted to enter between said dies to separate the upper ends thereof and to drive the operating ends thereof toward each other whereby to engage and deform the material of the cover flange and container wall so as to interlock the same.

9. Mechanism for attaching a flanged cover to a walled container comprising a frame, a

pair of di s pivotally mounted on said frame in spaced relation to each other, and adapted to be disposed one on each side of said wall and cover incline the same from the vertical, said inclined face of said wedge engaging the upper end of said male die and progressively forcing its upper end outwardly and its operating end inwardly toward the said female die so as to engage and deform the material of said flange and container wall so as to interlock the same.

DAVID STERN. 

